Irina Shayk, who is reportedly expecting her first child with boyfriend Bradley Cooper, poses after taking part in the 2016 Victoria's Secret Fashion Show at the Grand Palais in Paris on Nov. 30, 2016.

Patrick Kovarik/AFP/Getty Images

Cheryl Cole Steps Out Amid Pregnancy Rumors

Cheryl Cole turns on the Christmas lights at St. James Church in London during the The Piccadilly Christmas Concert, Nov. 29, 2016.

Xposure/AKM-GSI

Ciara Cradles Her Baby Bump at AMAs

Ciara attends the 2016 American Music Awards at Microsoft Theater in Los Angeles, Nov. 20, 2016.

Frederick M. Brown/Getty Images

Pregnant Mila Kunis Steps Out in LA

Mila Kunis is spotted out and about in Studio City, California, Nov. 15, 2016.

Dunkin D/FAMEFLYNET PICTURES

Tori Spelling Cradles Her Baby Bump

Tori Spelling shows off her baby bump at the Moana World Premier at El Capitan Theatre in Hollywood, California, Nov. 14, 2016.

Koi Sojer/PacificCoastNews

Portman Steps Out in Stripes

Natalie Portman is spotted in Los Feliz, California, Nov. 14, 2016. Natalie is currently expecting her second child with her husband Benjamin Millepied.

Anne Hathaway Stops for Coffee in NYC

Cat Deeley Shows Off Her Baby Bump

Pregnant English television presenter, actress, singer and model, Cat Deeley does some shopping on Melrose Place in West Hollywood, Calif, on Nov. 27, 2015.

Poersch/AKM-GSI

Expectant Parents Bobby Cannavale and Rose Byrne Hit the Red Carpet

Bobby Cannavale and Rose Byrne attend the 8th Annual Museum Of Modern Art Film Benefit honoring Cate Blanchett at Museum of Modern Art, Nov. 17, 2015, in New York.

Noam Galai/Getty Images

This photo was posted to Chrissy Teigen's Instagram account on Oct. 18, 2015 with the text, "Somebody is early to the party."

chrissyteigen/Instagram

Pregnant Ivanka Trump Hits the Red Carpet in Stilettos

Ivanka Trump attends the 2015 New York City Ballet Fall Gala at David H. Koch Theater at Lincoln Center, Sept. 30, 2015, in New York.

Gilbert Carrasquillo/Getty Images

Tom Hardy and His Wife Charlotte Riley Debut Her Baby Bump on the Red Carpet

Tom Hardy and Charlotte Riley attend the premiere of "Legend" at Odeon Leicester Square on Sept. 3, 2015 in London.

Getty Images

Kristin Cavallari Shows Off Her Baby Bump

Kristin Cavallari posted this photo to Instagram on Aug. 16, 2015 with the caption, "Thank you @virginhotelschifor the amazing prenatal massage."

Kristin Cavallari/Instagram

Coco and Ice-T Step Out After Announcing Their Pregnancy

Television Personality Coco Austin and Actor Ice-T are seen in Soho, July 29, 2015, in New York.

Raymond Hall/GC Images/Getty Images

Kristin Cavallari Reveals Her Baby Bump

Kristin Cavallari appears in a photo posted to her Instagram account on June 4, 2015 with the text, "Dressing for the bump now..its out and about!"

kristincavallari/Instagram

Brooklyn Decker Debuts Her Baby Bump

This image appeared on model Brooklyn Decker's Instagram account on May 2, 2015 with the text, "So this happened... #the3ofus."

brooklynddecker/Instagram

Naya Rivera Dresses Up Her Bump

Naya Rivera attends the 101st Annual White House Correspondents' Association Dinner at the Washington Hilton, April 25, 2015, in Washington.

Michael Loccisano/Getty Images

Pregnant Jaime King Steps Out in a Sheer Dress

Actress Jaime King attends the Burberry "London in Los Angeles" event at Griffith Observatory, April 16, 2015, in Los Angeles.

Jon Kopaloff/Getty Images

Pregnant Jennifer Love Hewitt Stays Comfortable

A pregnant Jennifer Love Hewitt shows off her growing baby bump while out and about in Santa Monica, Calif., April 9, 2015.

Dmac/FameFlynet Pictures

Pregnant Mila Jovovich Takes Her Dog for a Hike

Pregnant actress Milla Jovovich looks ready to pop while enjoying a hike with her husband Paul W.S. Anderson and their dogs on March 24, 2015 in Los Angeles, Calif. The happy couple are expecting their second child together!

FM/FameFlynet Pictures

Ashlee Simpson Shows Off Her Baby Bump at the Gym

Ashlee Simpson is seen in Los Angeles, March 20, 2015.

Splash News

Kate Hudson Greets a Very Pregnant Molly Sims

Model Molly Sims and actress Kate Hudson attend VH1's "Barely Famous" premiere screening and party at The London Hotel, March 12, 2015, in West Hollywood, Calif.

Jeff Kravitz/Getty Images

Alec Baldwin Rubs His Wife's Pregnant Belly

Alec Baldwin and Hilaria Baldwin attend the Bent on Learning 6th Annual Inspire! Gala, March 10, 2015 in New York.

Paul W.S. Anderson Takes a Hike With Pregnant Milla Jovovich

Jessica Biel a Reveals a Big Baby Bump

Heavily Pregnant Jessica Biel seen wearing dirty denim overalls on the set 'The Devil and The Deep Blue Sea', Feb. 25, 2015 in Los Angeles, Calif. Her big baby bump hasn't seemed to stop the star from working and she appeared to glow as she worked on set.

PacificCoastNews

Tiffani Thiessen Cradles Her Bump

Actress Tiffani Thiessen attends AOL's BUILD Speaker Series at AOL Studios in New York, Feb. 24, 2015, in New York.